ECM DTC EO37: Shorted Mat Sensor Circuit: Description
ECM turns on "Engine Control System Fault" telltale, ECM substitutes 40°C for MAT when coolant is greater than 40°C. ECM substitutes coolant temp for MAT when coolant temp less than 40°C.
ECM turns on "Engine Control System Fault" telltale, ECM substitutes 40°C for MAT when coolant is greater than 40°C. ECM substitutes coolant temp for MAT when coolant temp less than 40°C.